Seiko Cal. 6378 - 907

Released in 1984, the Cal. 6378 with design code 907 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-01b6edeb36dd]

Also known as: Monster, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1984

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